Xfinity.com/activate cable box is an online service that allows customers to activate their Xfinity cable boxes from home. With this service, customers can easily set up and configure their cable box without having to wait for a technician or even leave the house. This makes it easier than ever before for people to get their television services running quickly and efficiently so they can start enjoying all of the great features included with Xfinity TV packages right away. Using the online activation process is easy, as all you need are your account number and serial number from your equipment card which came in your welcome kit when you signed up with Xfinity TV services . Once these numbers have been entered correctly into the website’s interface, simply follow any additional instructions on screen until everything has been successfully activated. After this process is complete, users will be able to access all of their favorite channels through either live streaming or On Demand options depending on what type of package they purchased from XfintyTV Services originally.